class Circle {
  private double radius;  

  public Circle(double radius) {
    this.radius = radius;
  }                        
 
  public String getPerimeter() {
    double perimeter = 2 * Math.PI * radius;
    return String.format("%.2f", perimeter);
  }
    
  public String getArea() {
    double area = Math.PI * radius * radius;
    return String.format("%.2f", area);
  }
 
  public void display() {
    System.out.println(getPerimeter() + "," + getArea());
  }
}



